Every year, 300,000 children are born with sickle-cell disease, primarily in Africa and India. It is a genetic disorder that causes some blood cells to become abnormally shaped. The result is that those…

They have cancer in their sights.
StephenMitchell/FlickrAugust 26, 2014

It sounds like a scene from a science fiction novel – an army of tiny weaponised robots travelling around a human body, hunting down malignant tumours and destroying them from within. But research in Nature…

“Diabetic urine”, the surgeon Herbert Mayo wrote in 1832, “is almost always of a pale straw or greenish colour. Its smell is commonly faint and peculiar, sometimes resembling sweet whey or milk.” The use…